John Doe is one of Roblox's oldest urban legends, a rumored hacker account tied to early test accounts named John Doe and Jane Doe, with a viral 2017 rumor claiming the account would attack the platform. While the hack never happened, the name stuck as shorthand for a menacing digital intruder. Glitchy 'corrupt energy' sounds like this one grew out of that legend, circulating through Roblox meme edits and gaming videos as the audio cue for a villain reveal. It endures because the John Doe myth still signals instant danger to Roblox players.